Boiler efficiency RL correctly applied: These requirements result for your CE-compliant product

Boiler efficiency Directive correctly applied: These requirements result for your CE-compliant product

The EU Boiler Efficiency Directive (92/42/EEC) aims to improve the efficiency of new hot water boilers with liquid or gaseous fuels. It ensures strict energy efficiency requirements to reduce energy consumption in private homes and commercial spaces. This Directive is part of the SAVE programme and the implementation of Directive 2009/125/EC on the environmental design of products. It eliminates the possibility for EU countries to use their own labelling systems for more efficient boilers than standard appliances. Industry may enter into voluntary agreements to reduce the energy consumption of its products, which are approved and monitored by the Commission. Under the EU Energy Efficiency Directive (2012/27/EU), energy efficiency regulations for boilers were published in 2013, setting minimum standards and an energy labelling system. In addition, Regulation (EU) No. 813/2013 Eco design requirements for space heaters and combined heaters with an output of less than 400 kW fixed that are not operated with biomass.

Frequently asked questions

Q&A

What is the Boiler Efficiency Directive (92/42/EEC) about?

Domestic hot water boilers, which are used for heating purposes in private households and commercial premises, account for a significant proportion of the total energy consumption in Europe. Better boiler efficiency is also in the interest of consumers to reduce fuel costs.

Directive 92/42/EEC of the European Union therefore regulates the efficiency requirements of new hot water boilers fired with liquid or gaseous fuels to ensure that they meet strict energy efficiency requirements.

Which directives and/or regulations are related to the Boiler Directive?

  • Directive 92/42/EEC is part of the European Union’s Specific Actions for Vigorous Energy Efficiency (SAVE) programme and one of the measures implementing Directive 2009/125/EC on the environmental design of energy-related products, defines the efficiency requirements for individual product groups. This eliminates the possibility for EU countries to apply a special labelling system for boilers that are more efficient than standard appliances. Industry can also make voluntary agreements to reduce the energy consumption of its products. The Commission formally approves these agreements and monitors their implementation.
  • The EU Energy Efficiency Directive (2012/27/EU) sets binding targets for EU countries to achieve 20% energy efficiency by 2020. As part of this policy, a number of energy efficiency regulations for boilers were published in 2013. They establish minimum standards and an energy labelling system.
  • Under this directive, a number of energy efficiency regulations for boilers were published in 2013. They establish minimum standards and an energy labelling system.
  • Regulation (EU) No. 813/2013, which amended Directive 92/42/EEC lays down the eco design requirements for space heaters and combined heaters which are not operated with biomass and have an output of less than 400 kW.

What is the CE marking?

The CE marking indicates product conformity with health, safety and environmental standards. It must be applied to all products covered by, for example, the Boiler Directive, before they are placed within the European Economic Area (EEA / EEA): consisting of the EU countries as well as Norway, Iceland and Liechtenstein) and in Turkey. For CE marking, manufacturers/distributors of hot water boilers must ensure that their products meet the requirements set out in the directive. easyCE can simplify and accelerate the conformity assessment process for you through the years of experience of our experts.

What does the Boiler Efficiency Directive say about boiler bans?

Member States shall not prohibit, restrict or impede the placing on the market or putting into service in their territory of appliances and boilers which comply with this Directive (unless otherwise specified in the Treaty or other directives or Community legislation).

Which products are covered by Directive 92/42/EEC?

The Directive lays down the efficiency requirements for new hot water boilers fired with liquid or gaseous fuels with an output of 4 kW and h at most 400 kW , ranging to articles for professional use. Category II includes products such as hearing and visual protection devices, protective clothing and sportswear.

  • Standard boilers,
  • Low-temperature boilers and
  • Gas boiler.

Which products are not covered by Directive 92/42/EEC?

Article 3 of Directive expressly excludes from the scope the following:

  • Hot water boilers that can be fired with various fuels, including solid fuels
  • Equipment for instant preparation of hot water
  • Boilers designed for firing with fuels whose characteristics differ significantly from those of the liquid and gaseous fuels normally marketed (industrial exhaust gas, biogas, etc.)
  • Stoves and appliances intended mainly for heating the rooms in which they are installed and - as a secondary function - for the provision of hot water for central heating and sanitary water heating
  • Appliances with a nominal power of less than 6 kW with gravity circulation designed exclusively for the production of stored domestic hot water
  • Boilers made to order.

What does energy efficiency mean according to the boiler directive?

The energy efficiency is higher the lower the energy consumption for the same heating power, that is, less heating energy to maintain the same temperature.

What does cogeneration mean according to the boiler directive?

Cogeneration is the simultaneous generation of electricity and heat, both of which are used.

What does space heater mean according to the boiler directive?

A space heater is a device equipped with one or more heat generators that supplies heat to a water-based central heating system to keep an interior at a uniform temperature.

What does the boiler directive mean?

A combination heating device is a room heating device, which is used in addition to heating to provide warm drinking or service water and is connected to an external drinking or service water supply.

Who is entitled to carry out an assessment before applying the CE conformity marking?

The assessment before the application of the CE conformity marking is carried out either by the manufacturer itself, the importer or officially designated bodies. easyCE is happy to advise and support you as a manufacturer or importer on the way to conformity assessment and prepare the necessary documents for you. Accelerate your conformity assessment process by drawing on the years of experience of our easyCE experts.

What efficiency requirements must boilers meet?

In Article 5 of Directive 92/42/EEC lays down the efficiency requirements that boilers must meet at both rated power and partial load:

When operating at nominal power Pn, expressed in kW, and an average boiler water temperature of 70°C , the efficiency shall be 87.5 + 1.5 x log(Pn) for low temperature boilers and 91 + log(Pn) for gas condensing boilers.

When operating at 30 % partial load , the efficiency of low temperature boilers at 40°C boiler water temperature at 87.5 + 1.5 x log(Pn) and of gas condensing boilers at 30°C boiler feed water temperature 91 + log(Pn).

What are the efficiency requirements for double function boilers?

In the case of boilers with a dual function, i.e., heating and water heating, the above requirements from Article 5 paragraph 1 refer to the efficiency only for the heating function.

What are the steps of conformity assessment?

The conformity assessment for boilers without gaseous fuels includes these two steps:

  1. Analysis of the efficiency of a boiler type in accordance with Module B (described in Annex III to the Directive)
  2. Completion of the declaration of conformity with the approved type in accordance with Module C, D or E (described in Annex IV to the Directive)

The conformity assessment procedures for boilers using gaseous fuels are different from those mentioned above. They are subject to the same procedures as in the Gas Equipment Directive 2009/142/EC, i.e.:

  1. EC type-examination by a notified body (details are explained in point 1 of Annex II to Directive 2009/142/EC)
  2. Completion by the manufacturer of one of the three EC type conformity declaration procedures or the EC verification procedure (details are provided in points 2-5 of Annex II to Directive 2009/142/EC)

How does the conformity assessment work for boilers operated with gaseous fuels?

First, a notified body shall verify and certify that an example representative of the planned production complies with the relevant provisions of the Directive. The manufacturer or his authorised representative shall submit a application to a notified body for EC type-examination.

What must an application for EC type-examination at a notified body contain?

The application must contain the following information:

  • the name and address of the manufacturer and/or his representative
  • a written declaration that no similar application has been submitted to another body
  • any technical documentation to be submitted in accordance with Section 3 of the Directive

The applicant must also provide the notified body with a model representative of the product. The notified body shall be entitled, if necessary, to request further samples for the performance of the tests.

What are the technical documents?

The technical documentation shall be such that an assessment of the product is possible on the basis of the requirements laid down in the Directive. They should therefore include:

  • A general description of the product
  • Design and manufacturing drawings and diagrams of components, subassemblies, circuits, etc.
  • Descriptions and explanations required to understand the drawings and plans and the operation of the product
  • A list of the standards referred to in Article 5, paragraph 2, applied in whole or in part, and a description of the solutions chosen to meet the essential requirements of the Directive, to the extent that the standards referred to in Article 5 have not been applied
  • Results of design calculations, tests carried out, etc.
  • Inspection reports

They must therefore cover the design, manufacture and functioning of the equipment to the extent necessary for the assessment.

What does the notified body do when it receives the application?

  1. examination of the technical documentation and verification of whether the product has been manufactured in accordance with these documents
  2. Check whether the solutions chosen by the manufacturer are appropriate in cases where paragraph 2 of Section 5 have not been applied
  3. Testing whether the standards specified by the manufacturer have actually been applied
  4. agreement with the applicant on a place where the tests are carried out
  5. issuing an EC type-examination certificate if the design complies with the relevant provisions of this Directive (The certificate shall include the name and address of the manufacturer, the result of the test and the information required to identify the approved type)
  6. Provide reasons if type examination certificate was refused

The directive also provides for certain procedures for the appeal against the refusal

What do I have to do after receiving the EC type examination certificate?

After an EC type-examination has been issued, the manufacturer must affix the CE marking on each device and issue a written declaration of conformity.

The manufacturer shall take all necessary measures to ensure that the manufacturing process corresponds to the conformity of the manufactured equipment with theType-examination certificate described and guaranteed with the performance requirements laid down in the Directive.

The manufacturer or his representative shall keep a copy of the declaration of conformity for at least ten years from the last date of manufacture of the product concerned.

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